I have two salinity sensors, one before buying, the sensor housing is transparent, and recently bought an appearance have changed. When I bought this new salinity sensors, found Salinity values continue to decline, is still the case after recalibration, eventually it could no longer detect the correct value of salinity. One of my friends also encountered the same situation, but also recently bought salinity sensors. Are these products a problem?
2 weeks ago calibrated
ADC1 65
ADC2 245
Now
ADC1 90
ADC2 95
照片.JPG
The Old Sensor
QNFCKJY)W4PIZS5QPJ[LY]E.jpg
The New Sensor
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